Comparative study of the synergistic effect of ATMP and DTPMPA on CaSO 4 scale inhibition and evaluation of induction time effect

Zeino, Aasem; Albakri, Muhammed; Khaled, Mazen; Zarzour, Maan

doi:10.1016/j.jwpe.2017.11.013

Cited by 44 publications

(17 citation statements)

References 22 publications

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“…A common problem in the field of water transport, thermal desalination plants, plants producing gas and oil and reverse osmosis is the formation of calcium carbonate scales. (Zeino et al 2018) The densely packed CaCO 3 salt binds strongly to the surface of the membrane. (Muryanto et al 2014) The fouling by the CaCO 3 salt is highest for the stream of concentrate at the final part of the membrane system in the RO systems.…”

Section: Sbsmentioning

confidence: 99%

SHMP as Antiscalant for Treating Brackish Water using Reverse Osmosis

Ansari¹

2021

ijSciences

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One of the most genuine issues found in desalination utilizing reverse osmosis (RO) is concentrate or administration of brine. This concentrate can be utilized as a raw material for production of minerals. The antiscalants present in the RO handle ought to be removed after the process of salt crystallization. The precipitation of the amount of sulfate and carbonate from calcium can be modulated by the antiscalants in the process of reverse osmosis. However, the modulation of calcium phosphate has not been highlighted in literature. This gap in the literature instigated us to explore the activity of the antiscalants in the scaling of calcium phosphate in the RO blocks by a mild method. Nowadays, most RO desalination plants are utilizing phosphorus-based antiscalants to prevent scaling and to realize tall layer execution, as measured by diminished transmembrane weight, salt entry, and expanded saturate stream. In any case, phosphorus antiscalants in brine disposal can be an natural issue that ought to be considered and considered when introducing a desalination plant. Sodium Hexametaphosphate (SHMP) is reckoned excellent antiscalant agent which utilizes to deal with scaling in RO films. The sodium hexametaphosphate solution is prepared by mixing in sodium hexametaphosphate vessel and dosed to the feed water through. However, the apparatus containing sodium hexametaphosphate was highly prone to contamination by bacteria. The amount of bacteria within the apparatus after 36 days of makeup was far too high to be analysed as it reached a value of beyond Too Numerous To Count (TNTC). The polyphosphate can be transformed into orthophosphate in presence of sodium hexametaphosphate solution. The conversion is influenced by parameters like temperature, concentration and different nutrients responsible for the growth of microbes. Thus a study was conducted for the detection of free phosphate in a solution of sodium hexametaphosphate. Since hydrogen sulfide (H2S) can be generated in raw water, the use of chlorine was averted completely. The tanks and injection lines containing sodium hexametaphosphate solution was disinfected using sodium metabisulfite (SBS). The optimum concentration of sodium metabisulphate solution required for sterilization along with reducing the formation of the free phosphate was studied. The reaction of the SBS in the apparatus containing sodium hexametaphosphate solution was studied. Furthermore the interaction between the SBS with the sodium hexametaphosphate solution in connection with the Microguard Filter (MGF) influencing the efficacy and output of the RO system was studied.

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Section: Sbsmentioning

confidence: 99%

SHMP as Antiscalant for Treating Brackish Water using Reverse Osmosis

Ansari¹

2021

ijSciences

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“…The behaviors of this scale are mainly as functions of scale age, temperature, pressure, and brine pH. The reaction of iron with H 2 S produces iron sulfide precipitates as iron is in ionic form and H 2 S in gaseous form [54]. Many researchers have reported the sources to deliver the H 2 S and Fe in the wells, such as reduction of sulfate ion, acid treatment of sour wells, degradation of drilling mud additives, thermal degradation of organic sulfur-containing compounds, and sulfate-reducing bacteria.…”

Section: Types Of Scalesmentioning

confidence: 99%

A Review of Green Scale Inhibitors: Process, Types, Mechanism and Properties

Mazumder

2020

Coatings

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In the present time, more often, it has been seen that scaling has grown as widely and caused problems in the oilfield industry. Scaling is the deposition of various salts of inorganic/organic materials due to the supersaturation of salt-water mixtures. Many works have been proposed by researchers using different methods to solve the problem, of which scale inhibition is one of them. The scale inhibitors, particularly for antiscaling, have derived from natural and synthetic polymers. Among different polymers, inorganic and organic compounds (polyphosphates, carboxylic acid, ethylenediaminetetraacetic acid (EDTA), etc.) can effectively manage the oilfield scales of which many are toxic and expansive. Scale inhibitors of alkaline earth metal carbonate and sulfates and transition metal sulfide are commonly used in oilfield applications. Scale inhibition of metallic surfaces is an essential activity in technical, environmental, economic, and safety purposes. Scale inhibitors containing phosphorus appear to have significant achievements in the inhibition process despite its toxicity. However, phosphorus-based inhibitors can serve as supplements prompting eutrification difficulties. Besides these increasing environmental concerns, green scale inhibitors are renewable, biodegradable, and ecologically acceptable that has been used to prevent, control, and retard the formation of scale. Considering the facts, this review article summarized the concept of scale, various green scale inhibitors, types, mechanisms, comparative performance, significance, and future aspects of green scale inhibitors, which will shed light and be helpful for the professionals working in the oil and gas industries.

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“…The selection of environmentally friendly inhibitors which should be non-toxic, biodegradable, and show no bioaccumulation [1], and their appropriate dosage are two crucial factors to get the optimum E3S Web of Conferences 266, 01019 (2021) https://doi.org/10.1051/e3sconf/202126601019 TOPICAL ISSUES 2021 inhibitory action which must be achieved by simulating the well [5]. Although both types of phosphonate and polymeric SIs have been investigated experimentally [6][7][8][9][10], nevertheless, well-known polymeric environmentally friendly scale inhibitors, like poly aspartic acid (PASP) [11][12][13][14], polyepoxysuccenic acid (PESA) [15][16][17], and carboxymethyl inulin (CMI) [18][19][20][21], are gaining increased attention. Moreover, natural organic molecules and plant extracts like the green SIs [13,[22][23][24] in this study,wereassessed as brand-new SIs.…”

Section: Introductionmentioning

confidence: 99%

Performance of a novel green scale inhibitor

2021

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Many aspects of oilfield scale inhibition with green scale inhibi-tors (SIs) have remained untouched. For instance, the discharge of large amounts of produced water containing various types of hazardous chemi-cals, such as SIs into the environment has become a major concern. In-stead, environmental regulators encourage operators to look for greener SIs. In this study, the performance of a green SI was investigated using PHREEQC simulation. For a specific case study, two brines are considered to mix incompatibly to estimate the critical mixing ratio that has the high-est tendency to scaling. Subsequently, for 50/50 mixing ratio as the critical value, theoptimal dosage of SI and its performance in the presence of two different rocks were investigated such that 450 mg/L SI would be consi-dered as optimal value. Moreover, the simulated results show that more SI adsorption on calcite would be predicted, compared to dolomite.

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Comparative study of the synergistic effect of ATMP and DTPMPA on CaSO 4 scale inhibition and evaluation of induction time effect

Cited by 44 publications

References 22 publications

SHMP as Antiscalant for Treating Brackish Water using Reverse Osmosis

SHMP as Antiscalant for Treating Brackish Water using Reverse Osmosis

A Review of Green Scale Inhibitors: Process, Types, Mechanism and Properties

Performance of a novel green scale inhibitor

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